Parsing the backtrace output to demangle names:
String msg;
String bt = SystemStats::getStackBacktrace();
// The lines returned look like this on linux:
//
// test/test.out(_ZN4juce11SystemStats17getStackBacktraceEv+0x2a) [0x53fdea]
//
// At the very least, attempt to parse out the names so we can properly demangle them.
while( bt.isNotEmpty() )
{
// parse out the next line from the backtrace string and remove it from bt
String line;
const int eol = bt.indexOfChar( '\n' );
if ( eol > 0 )
{
line = bt.substring( 0, eol - 1 );
bt = bt.substring( eol + 1 );
}
else
{
// no "\n" left, so consume the rest of the string
line = bt;
bt = String::empty;
}
const int startParen = line.indexOfChar( '(' );
const int closeParen = line.indexOfChar( ')' );
const int plusOffset = line.lastIndexOfChar( '+' );
if ( startParen > 0 &&
plusOffset > startParen &&
closeParen > plusOffset )
{
// look like we have a string we can try and demangle
String name( line.substring( startParen + 1, plusOffset ) );
int status = 0;
char *demangled = abi::__cxa_demangle( name.toStdString().c_str(), nullptr, nullptr, &status );
if ( status == 0 )
{
// we have a better demangled name we can use -- replace it within the line
name = " " + String(demangled) + " ";
line = line.replaceSection( startParen + 1, plusOffset - startParen - 1, name );
}
free( demangled );
}
msg += line + '\n';
}